<template>
   <scroll id="tab-menu">
     <div class="menu-list">
       <div class="menu-list-item" :class="{active:index===currentIndex}"
       v-for="(item,index) in categories" 
       :key="index" @click="itemClick(index)">
       {{item.title}}
       </div>
     </div>
   </scroll>
</template>

<script>
 import Scroll from 'common/scroll/Scroll'
export default {
  name:'TabMenu',
  props:{
    categories:Array
  },
   data () {
      return {
        currentIndex:0
      };
   },

   components: {
     Scroll
   },

   computed: {},

   methods: {
     itemClick(index){
       this.currentIndex = index
       this.$emit('selectItem',index)
     }
   }
}
</script>
<style  scoped>
 #tab-menu {
    background-color: #f6f6f6;
    height: 100%;
    width: 100px;
    box-sizing: border-box;
  }

  .menu-list-item {
    height: 45px;
    line-height: 45px;
    text-align: center;
    font-size: 14px;
  }

  .menu-list-item.active {
    font-weight: 700;
    color: var(--color-high-text);
    background-color: #fff;
    border-left: 3px solid var(--color-high-text);
  }
</style>